The invention relates to a microcrystal glass and preparation method used as super-hard grinding wheel bond, which adopts the method that: quartz, boracic acid, alumina, zinc oxide, lithium carbonate, sodium carbonate, potassium carbonate and magnesium carbonate are used as basic glass materials and sodium fluorosilicate is used as nucleation agent, the materials are smelted to form the glass that is quenched and then smashed to glass powder; the glass powder is pressed, molded, and sintered, and crystallized under certain temperature so as to obtain the microcrystal glass; the main crystal phase of the microcrystal glass is fluorophlogopite, the microcrystal is a hexagonal flake structure, the size of the microcrystal is 1um-2um. The microcrystal glass can be used as super-hard grinding wheel bond in place of ceramic so as to improve the strength of super-hard grinding wheel greatly, thereby improving speed and service life of grinding wheel; the invention also has integrated with excellent performances of glass and porcelain enamel, such as wear-resistant, anti-corrosion, good anti-oxidation, excellent electrical property, adjustable expansion coefficient, and good thermal stability. The invention can widely be applied as structural materials, optical materials, and architecture materials.